Double-radiant-source framework for container detecting system

Abstract

A double-radiant-source framework used for a container detecting system, which belongs to the technical field of radiation detection, having a horizontal accelerator, a vertical accelerator and a gantry tower composed of a left vertical girder, a right vertical girder, an upper cross girder, and a lower cross girder. A horizontal collimator and a vertical collimator are disposed in front of the frontal face each of the horizontal accelerator and the vertical accelerator. The horizontal collimator and the vertical collimator are fixed on the left vertical girder and the upper cross girder of the gantry tower, respectively. The radiation beams defined by the horizontal collimator and the vertical collimator are two planes oriented parallel to each other. A double-detector arm is disposed inside the right vertical girder of the gantry tower, and detector modules are disposed inside the double-detector arm for receiving the two different planes of radiation beams defined by and emitted from the horizontal collimator and the vertical collimator. Detector modules are disposed inside the upper cross girder and the lower cross girder respectively for receiving separately radiation beams defined by and emitted from the horizontal collimator and the vertical collimator. The container detecting system can reduce the area covered by the scanning channel of the system, and make the transportation, installation and use convenient, and improve the quality of the detected images.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to a radiant source scan channel of an automatic scan type radiation detecting system for detecting large objects, and more particularly, to a double-radiant-source scan channel structure, which belongs to the technical field of radiation detection. [0002] Container freight / vehicle detecting system is the major detecting device that the customs needs. So far, customs in most of the countries mainly adopts a method of opening the container or a method of single-radiant-source radiation imaging in the detection of the container trucks passing through the customs. The detection method of opening the container and tearing open the freight needs a long time, with a low detection amount per day, and has a high detection cost, which seriously affects the speed of the container trucks passing through the customs. In order to solve this problem, a detecting system using single-radiant-source radiation imaging was developed. The...

AI Technical Summary

Benefits of technology

[0009] The present application adopts the aforesaid structure: two accelerators serve as radiant sources, and are disposed in the general horizontal direction and the general vertical direction, respectively, they are separate, and emit radiation beams one after another, and they both have their separate collimator and detector modules. Meanwhile, the two sets of separate radiant imaging systems are installed on the same frame member, and thus make the design of the present invention reasonable, and its structure compact. The application of the present invention to the container detecting system has the following advantage: convenient use and installation, high speed detection, high quality of the formed images, and a great rise in the speed of the container truck passing through the customs.

Problems solved by technology

The detection method of opening the container and tearing open the freight needs a long time, with a low detection amount per day, and has a high detection cost, which seriously affects the speed of the container trucks passing through the customs.

Although the aforesaid system has solved the problem of obtaining the scenograph of the objects contained in the container without opening the container and thus raises the detecting speed, it has the defects as a complex structure, a large area coverage, inconvenient installation and imperfect image effect for detection.

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